Among poly(alkylene sulfones) the simplest poly(methylene sulfone (PMS), [CH₂-SO₂]₂ is of particular interest because of the expected high thermal stability and its high polar character. In the present work, PMS was prepared by oxidation of the known poly(thiomethylene) with 30% hydrogen peroxide in formic acid. Sonication was applied for the oxisation reaction. Thus prepared PMS contained more than 80% of the sulfur in sulfone form. As expected, PMS was found to be themally stable compared with other poly(alkylene sulfones). PMS was not soluble in water but soluble in dimethyl sulfoxide. PMS appears to be crystalline. However, the melting point was not observed on the differential thermal analysis due to the decomposition.

본 연구에서는 이미 알려진 폴리티오메틸렌을 개미산 용매에서 30% 과산화수소를 사용하여 산화시켜 폴리메틸렌술폰(PMS)을 합성하였다. 이렇게 합성된 PMS는 황원자의 80% 이상이 술폰으로 산화된 상태였다. 예상한 바와 같이 PMS는 다른 폴리알킬렐술폰과 비교할 때 열안정성이 높았으나, PMS는 물에는 용해되지 않고 술폰시화 디메틸(DMSO)에만 용해되었다. PMS는 광각 X-선 산란에 의한 분석 결과 결정성 중합체로 보였다. 그러나 분해 때문에 열분석 결과로서는 용융점이 관찰되지 않았다.

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